the tsa agent is identified as gerardo hernandez. passengers during all of this hid inside restrooms, many poured out on to the tarmac. there was bloodshed and chaos that filled the terminal. investigators were able to shut down the terminal. 167,000 passengers here at lax, the third busiest in the country were affected by this. the terminal today remains shut down although the other terminals are operational. it was chaos and confusion all day yesterday, lester. but the suspect is in custody, lester. >> miguel almaguer at lax. thank you. >>> pete williams has more on the investigation into the suspect and also a possible motive. he's with us from washington. pete, what can you tell us? >> i can tell you, erica, that federal officials are going through this person's background hoping to find out what led him to take a rifle and over 100 rounds of ammunition to the airport. they say paul anthony ciancia, age 23, originally from new jersey, was carrying some radical antigovernment written material they describe as harshly critical of t